Wong, Carlos K. H. http://orcid.org/0000-0002-6895-6071
Low, Marshall C. H.
Kwok, Ashley C. Y.
Lui, Angel Y. C.
Lau, Kristy T. K. http://orcid.org/0000-0003-4412-2969
Au, Ivan C. H. http://orcid.org/0000-0001-5904-8322
Xiong, Xi http://orcid.org/0000-0002-9418-7448
Chung, Matthew S. H. http://orcid.org/0000-0002-1669-4479
Kwan, Mike Y. W. http://orcid.org/0000-0002-1476-9625
Lau, Eric H. Y. http://orcid.org/0000-0002-6688-9637
Cowling, Benjamin J. http://orcid.org/0000-0002-6297-7154
Funding for this research was provided by:
Health and Medical Research Fund (COVID190210)
Article History
Accepted: 13 March 2022
First Online: 16 April 2022
Declarations
:
: Dr CKHW conceptualized, designed the study, reviewed and revised the manuscript. Mr MCHL, Miss ACYK and Miss AYCL searched literatures, drafted the initial manuscript, reviewed and revised the manuscript. Miss KTKL reviewed and revised the manuscript. Mr ICHA and Mr SHC conducted data analysis, reviewed and revised the manuscript. Miss XX, Mr EHYL and Prof. BJC reviewed and revised the manuscript. Dr MYWK provided clinical input.
: We received financial support from the Health and Medical Research Fund, Food and Health Bureau, Government of the Hong Kong Special Administrative Region, China (Grant no. COVID190210).
: Dr Wong, Mr Low, Miss Kwok, Miss Lui, Miss Lau, Mr Au, Mr Chung, Miss Xiong, Mr Lau, Prof. Cowling and Dr Kwan have no conflicts of interest to disclose.
: The study protocol was approved by the Institutional Review Board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster (Reference No. UW 20-493). Given the extraordinary nature of the COVID-19 pandemic, individual patient informed consent was not required for this retrospective cohort study using anonymized data.
: The data that support the findings of this study were provided by the Hong Kong Hospital Authority. Restrictions apply to the availability of these data, which were used under license for this study. Deidentified individual participant data will not be made available.
: The data that supported the findings of this study were provided by the Hong Kong Hospital Authority but restrictions apply to the availability of these data, which were used under license for the current study, and so are not publicly available. Data are however available from the authors upon reasonable request and with permission of Hong Kong Hospital Authority.
: All authors contributed to the interpretation of the analysis, critically reviewed and revised the manuscript, and approved the final manuscript as submitted. The corresponding author attests that all listed authors meet authorship criteria and that no others meeting the criteria have been omitted.
: All statistical analyses were performed using STATA Version 16 (StataCorp LP, College Station, TX).
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